Related Clues:
- Erects building in out of the way place
- It's a mystery to the six characters opening 2 down
- Erects building behind someone's back
- It was not disclosed it was covered up by Mujahideen
- Concealed from view
- Concealed (oneself?)
- Arcane splinter group holding on
- Covert cult embracing religious class
- Something a gossip can't keep
- Tried to contain
- Sought anonymity
- Failed to deal with
- Clandestine, undercover
- Clandestine group admits backing church writing
- Sheena Easton "Best Kept ___"